Container deposit legislation in the United States
There are ten states in the United States of America with container deposit legislation, popularly called "bottle bills" after the Oregon Bottle Bill, the first such legislation that was passed. Container deposit legislation (CDL) requires a refundable deposit on certain types of recyclable beverage containers in order to ensure an increased recycling rate.
Source: Wikipedia — Container deposit legislation in the United States (CC BY-SA 4.0)